{
  "abstract": "A zoned vacuum gripping tool comprising one tool-change interface, four suction cups, one ejector, four isolation valves, four zone branches and one vent valve. When the suction cups reach the workpiece, the suction cups are evacuated by the ejector. After the workpiece has reached the set-down position, the vacuum circuit is vented by the vent valve. The arrangement is a proposed configuration composed from a typed library of mechanism blocks derived from published patents; it has not been constructed.",
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    "robotics-automation/end-effectors/vacuum-grippers",
    "industrial-motion-power-transmission/fluid-power/valves-and-manifolds",
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    "industrial-motion-power-transmission/fluid-power/vacuum-generation"
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  "keywords": [
    "zoned vacuum tool",
    "tool-change interface",
    "suction cup",
    "ejector",
    "isolation valve",
    "zone branch",
    "vent valve",
    "compressed air supply",
    "release control",
    "tool changing"
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  "language": "en",
  "license": {
    "name": "Creative Commons Attribution 4.0 International",
    "url": "https://creativecommons.org/licenses/by/4.0/"
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  "publication_id": "OT-2026-000011117",
  "published_at": "2026-09-17T08:12:10.156048Z",
  "publisher": "Nebula Innovations Limited",
  "record_type": "disclosure",
  "schema": "opentechnical-publication-manifest/1.0",
  "supersedes": "OT-2026-000006915",
  "title": "Four cup vacuum gripper, four zone face, per zone isolation, single stage ejector, vented after set-down, on a tool changer",
  "uuid": "01a0ae6c-540f-73b4-9ce6-335b28054713"
}